Car-truck.



No. 648,737.. Patenced May 1, I900.

C E. FBYE.

CAR TRUCK.

(Application filed. Mar. 8, 1900,)

(No Model.) 3 Sheets-Sheat l.

Patented May I, I900. C. E. FRYE.

CAR TRUCK.

(Application filed Mar. 8, 1900.)

' 3 Shuts-Sheet 2.

(No Model.)

E k W \{QTN'EESEE ,JhQ 66% No. 648,737. Patented May I, I900. C. E. FRYE.

CAB TRUCK.

. (Application filed Mar. 8, 1900.

(M 3 Sheets-Sheet a.

UNITED STATES:-

PATENT. OFFICE- CHARLES stairs, "or LAcoNIA', NEW HAMPSHIRE.

(FAR-TRUCK.

srn crnicn'rxon form'ing'part of Letters Patent No. 648,737, .dated May 1, 1900.

' Application filed March 8,1900. Serial No. 7,772 on mam To all whont it n ta y concern.-

Be it known that I, CHARLES E. FRYE, a

citizen of the United States, residing in La conia, in the county of Belknap and State of New Hampshire, have invented new and useful Improvements in Car-Trucks,of which the following is a specification.

This invention relates to trucks especiallyf adapted for passenger-cars, and more particularly, but not exclusivelyyfor street-cars ;or electric cars as distinguished from Steamrailway cars.

This invention has for its principal object to produce a truck in which the bolster is exceptionally well cushioned against oscillation, with particular reference to the efiect'on the car-when passingover a curved track, and in carrying out my invention instead of supporting the bolster directly on and by the springs I suspend it from the transom,so that the bolster and the transom are supported as a whole on the elliptic springs and both travel vertically together and interpose cushioning-springs between the ends of the bolster and thetransom for effecting the relative lateral movement of the bolster.

The nature of the invention is fully described below and illustrated in the accompanying drawings, in which- Figure 1 is a plan view of a cartruck e'mbodying 'my invention. Fig. 2 is a side elevation of the same. Fig. 3 is a vertical section taken on line 3, Fig. 1. Fig. 4'isa vertical section taken on line 4, Fig. 1.

Similar letters of reference indicate sponding parts. 1

A represents the truck-frame, A being the end piece, and B represents the wheels, supported in the ordinary mannere- C O are the "elliptic springs, supported by the frame and directly by the pedestals a.

D D are the two parallel portions of the transom, connected at their outer ends by the crossp'ieces or end pieces D, Figs. 1 and 3, which are formed with plates D, Figs. 2 and 3, resting centrall y on and connected with the Springs E is the bolster, made in two parts, as shown in Fig. 1, connected at their ends by the crosspieces or end pieces E',-Figs. 1 and 3. a The end pieces E of the bolster are pwyidcd with recesses or pockets e, containing horizontallycorredisposed spiral springs F, whose outer ends bear against the end pieces D of thetransom'.

The bolster is free to move horizontally-that is to say, laterally with relation to the carwithin the transom, but has no relativevertical,move1nent,'it being suspended on the transom by hangers H, preferably two in number,- which extend down between the two parts to the bolster E, said bolsterhaving its .inner surfaces recessed at E-for their ac- Ihese hangers are supported 'from cross-rods K at their upper ends and commodation.

held centrally between the two parts of the bolster by blocks or collars K upon the lower cross-rods K, which extend through their lower ends, The supporting-rods K are sustained by cars or brackets L,which are bolted I at L to the outer surfaces of the transom D. (See Fig. 4.) Guides 5 on the frame prevent lateral movementof the bolster and transom. P is the truck center plate supported by the bolster and intended to receive the king-bolt.

It will be seen that the bolster is suspended directly from the transom without intermediate springs and that the transom and bolster I move together verticallyand as one pieceo'n termediate with the bolster only as regards their relative horizontal movement. When the car reaches a curve, the bolster moves toward the long rail-that is, the outer curved As the bolster and transom move vertically together on the elliptic springs, the guides S serve to prevent lateral movement, and thus the elliptic springs C. The sp'rings F are inall friction of the springsFin their pockets 1 is avoided.'

Having thus fully described my invention, WhatI claim, and desire to securegbyLetters Patent, is-

1. In acar-trnck, the frame; springs C supported thereby; the transom'sup orted at its opposite ends by Ice said springs;;tiic bolster;

and hangers supported by the transom and supporting the bolster, whereby the bolster is suspended from the transom and said bolster and transom are as a whole supported by the springs C and moved vertically on said springs without any vertical movement with relation to each other, substantially as described.

' tween the two parallel portions of the transom:

' substantially as set forth.

3. In a car-truck, the frame; the springsfl supported thereby; the transom D supported at its opposite ends by said springs and provided with the end pieces D the bolster E made intwo substantially-parallel parts connected by the end pieces E and located beand the hangers H, dross-rods K, Kf and ears L supporting the cross-rods K, whereby the bolster is suspended from the transom and prevented from vertical movement with relation thereto, and both sustained as a whole bysaid springs, substantially as described.

4. In a car-truck, the frame; the springsC supported thereby; the transom D supported at its opposite ends by said springs and provided with the end pieces Dythe bolsterE made in two substantially-parallel parts conneeted by the end pieces E and located between the two parallel portions of the transom, said end pieces E being provided with the pockets or recesses e; the cushioning-springs F extending from said pockets in the bolsters against the transom; and hangers whereby the bolster is suspended from the transom and prevented from vertical movement with relation thereto but allowed relative horizontal movement, substantially as set forth.

CHARLES E. FRYE.

\Vitnesses:

HENRY W. WILLIAMs,

-A. N. BONNEY. 

